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// Author: wan@google.com (Zhanyong Wan)

// Google Mock - a framework for writing C++ mock classes.
//
// This file tests the internal utilities.

#include "gmock/internal/gmock-generated-internal-utils.h"
#include "gmock/internal/gmock-internal-utils.h"
#include "gtest/gtest.h"

namespace
{

using ::testing::Matcher;
using ::testing::tuple;
using ::testing::internal::CompileAssertTypesEqual;
using ::testing::internal::Function;
using ::testing::internal::IgnoredValue;
using ::testing::internal::MatcherTuple;

// Tests the MatcherTuple template struct.

TEST(MatcherTupleTest, ForSize0)
{
  CompileAssertTypesEqual<tuple<>, MatcherTuple<tuple<>>::type>();
}

TEST(MatcherTupleTest, ForSize1)
{
  CompileAssertTypesEqual<tuple<Matcher<int>>,
                          MatcherTuple<tuple<int>>::type>();
}

TEST(MatcherTupleTest, ForSize2)
{
  CompileAssertTypesEqual<tuple<Matcher<int>, Matcher<char>>,
                          MatcherTuple<tuple<int, char>>::type>();
}

TEST(MatcherTupleTest, ForSize5)
{
  CompileAssertTypesEqual<
      tuple<Matcher<int>, Matcher<char>, Matcher<bool>, Matcher<double>,
            Matcher<char *>>,
      MatcherTuple<tuple<int, char, bool, double, char *>>::type>();
}

// Tests the Function template struct.

TEST(FunctionTest, Nullary)
{
  typedef Function<int()> F; // NOLINT
  CompileAssertTypesEqual<int, F::Result>();
  CompileAssertTypesEqual<tuple<>, F::ArgumentTuple>();
  CompileAssertTypesEqual<tuple<>, F::ArgumentMatcherTuple>();
  CompileAssertTypesEqual<void(), F::MakeResultVoid>();
  CompileAssertTypesEqual<IgnoredValue(), F::MakeResultIgnoredValue>();
}

TEST(FunctionTest, Unary)
{
  typedef Function<int(bool)> F; // NOLINT
  CompileAssertTypesEqual<int, F::Result>();
  CompileAssertTypesEqual<bool, F::Argument1>();
  CompileAssertTypesEqual<tuple<bool>, F::ArgumentTuple>();
  CompileAssertTypesEqual<tuple<Matcher<bool>>, F::ArgumentMatcherTuple>();
  CompileAssertTypesEqual<void(bool), F::MakeResultVoid>(); // NOLINT
  CompileAssertTypesEqual<IgnoredValue(bool),               // NOLINT
                          F::MakeResultIgnoredValue>();
}

TEST(FunctionTest, Binary)
{
  typedef Function<int(bool, const long &)> F; // NOLINT
  CompileAssertTypesEqual<int, F::Result>();
  CompileAssertTypesEqual<bool, F::Argument1>();
  CompileAssertTypesEqual<const long &, F::Argument2>(); // NOLINT
  CompileAssertTypesEqual<tuple<bool, const long &>,
                          F::ArgumentTuple>();                         // NOLINT
  CompileAssertTypesEqual<tuple<Matcher<bool>, Matcher<const long &>>, // NOLINT
                          F::ArgumentMatcherTuple>();
  CompileAssertTypesEqual<void(bool, const long &),
                          F::MakeResultVoid>();             // NOLINT
  CompileAssertTypesEqual<IgnoredValue(bool, const long &), // NOLINT
                          F::MakeResultIgnoredValue>();
}

TEST(FunctionTest, LongArgumentList)
{
  typedef Function<char(bool, int, char *, int &, const long &)> F; // NOLINT
  CompileAssertTypesEqual<char, F::Result>();
  CompileAssertTypesEqual<bool, F::Argument1>();
  CompileAssertTypesEqual<int, F::Argument2>();
  CompileAssertTypesEqual<char *, F::Argument3>();
  CompileAssertTypesEqual<int &, F::Argument4>();
  CompileAssertTypesEqual<const long &, F::Argument5>(); // NOLINT
  CompileAssertTypesEqual<
      tuple<bool, int, char *, int &, const long &>, // NOLINT
      F::ArgumentTuple>();
  CompileAssertTypesEqual<
      tuple<Matcher<bool>, Matcher<int>, Matcher<char *>, Matcher<int &>,
            Matcher<const long &>>, // NOLINT
      F::ArgumentMatcherTuple>();
  CompileAssertTypesEqual<void(bool, int, char *, int &,
                               const long &), // NOLINT
                          F::MakeResultVoid>();
  CompileAssertTypesEqual<IgnoredValue(bool, int, char *, int &,
                                       const long &), // NOLINT
                          F::MakeResultIgnoredValue>();
}

} // Unnamed namespace
